Casting machine for the casting of plane stereotype plates



March 16, 1937. BROCKEL CASTING MACHINE FOR THE CASTING OF PLANESTEREOTYPE PLATES Filed Feb. 27, 1955 2 Sheets-Sheet l Ii g'. ,2.

Avail ff fj tockz' Mal-ch16, 1937. E. BROCKEL 2,073,675

CASTING MACHI NEFOR THE CASTING OF PLANE STEREOTYPE PLATES Filed Feb.27, 1935 2 Sheet's-Sheet 2 Patented Mar. 16, 1837 PATENT OFFICE CASTINGMACHINE FOR THE CASTING OF PLANE .STEREOTY PE PLATES Ernst Brockel,Augsburg, Germany, assignor to Maschinenfabrik Augsburg-Niirnberg A. G.,Augsburg, Germany, a corporation of Germany Application February 27,1935, Serial No. 8,427 In Germany March 3, 1934 3 Claims.

My invention refers to a casting machine for the casting of stereotypeplates wherein the melting. pot and the casting mold which are connectedwith each other by a conduit, are swung together into the castingposition so that the casting mold is subjected during the solidificationof the plate to the pressure of the contents of the melting pot, and theconnecting conduit between the melting pot and the casting mold isheated so that the still liquid metal contained in it can flow back intothe melting pot when the latter is swung back into the position of rest.

The present machines of this kind are con-.

structed for casting semi-cylindrical plates. It is the object of thisinvention to adapt such casting machines also for casting plane plates.According to the present invention, the upper and lower parts of thecasting mold and the melting pot are moved away from each other in anapproximately horizontal direction; the upper and lower parts of themold are separated from each other only in this end position so that theplate lies quite open before the operator.

In the accompanying drawings showing a con- 5 structional example of theinvention,

Fig. 1 is an elevation and Fig. 2 a front view of the machine, while,Fig. 3 being a similar view as Fig. 1 shows a modification.

The melting pot I is secured to panels 2 and 3 which are rotatablymounted upon a shaft 4. The casting mold which consists of a lower part5 and an upper part 6, is secured to two supports I and 8 which arerotatably mounted upon a shaft 9 which is mounted with its. ends in thepanels 2 and 3. The shaft 3 is mounted with its ends in fixed framesides ID and H. When the casting mold has been pressed firmly againstthe melting pot l, as shown in full lines in Fig. 1, it can be swungtogether with the melting pot I about shaft 4. On a lever l2 beingturned about a pivot l3mounted in the frame side H, a roller l4 fixed tothe lever l3 slides in a slot l5 of the panel 3, up and down. By thismeans, the panel 3 and consequently also the melting pot I as well asthe casting mold 5, 6 which is pressed firmly against the melting pot,are swung to such an extent about the shaft 4' that the melting pot isabove the casting mold and metal p contained in the melting pot flowsintothe casting mold through the connecting conduit it, which latter isheated by heating devices l'l.

Before the casting operation, the casting inold 5, 6 was pressed firmlyagainst the casting mouth of the melting pot l by the turning of thelever Ill. The upper part 6 of the casting mold is then locked withregard to the lower part 5 of the casting mold by means of a hook l9which is secured to the lever l8 and engages a pin 29 provided upon theupper part 6 of the mold.

After the solidification of the plate, the melting pot and the castingmold are moved back into the position shown in full lines in Fig. 1 by adownward swing of the lever l2. The metal contained in the connectingconduit it between the melting pot and the casting mold, remains, due tothe heating by the heating devices l'l, liquid at the end adjacent tothe melting pot, and consequently fiows back into the melting pot as thelatter is swung back to its initial position. In order to remove thesmall head which remains upon the cast plate from the connecting conduitIii, and in order to readily open the casting mold, the latter is firstmoved away in a downward direction from the melting pot by acorresponding turn of the lever 18, and is brought into the positionshown by the broken lines in Fig. 1. The supports l and 8 which are, aspres viously mentioned, secured to the lower part 5 of the casting mold,turn during this movement about shaft 9. On the downward movement of thelever 18 which swings about a pivot 2i fixed to the supports! and 8, thehook I9 secured to lever I8, is released from the pin 2i],v on the upperpart 6 of the mold which thereby becomes unlocked. The hook I9 ispivotally connectedby a pin 22 with a lever 23 forming therewith atoggle joint. The lower end of lever 23 is mounted by means of pivots 24in the supports 1 and 8. Therefore, as the lever I8 is moved downwardsand the hook l9 and consequently the pivot 22 fixed thereto are turned,the lever 23 turns about its pivot 24, and the panels 2, 3 together withthe casting mold 5, 6 are drawn away from the melting pot. To enable thecasting mold to be opened and the cast plate to be removed, the upperpart B of the casting mold is adapted to be swung sideways about a stud25 mounted in the lower part 5 of the casting mold, so that the castplate will be fully exposed to the operator and can be readily removed.7

Fig. 3 shows a modification in which the closed casting mold consistingof the lower part 5 and the upper part 6, remains undisturbed after theswinging back of the melting pot and the casting mold, into theirinitial position, and the melting pot l is displaced approximatelyhorizontally from the position shown in full lines to the position Ishown in broken lines. The casting mold 5, 6 assumes a somewhat inclinedposition so that the metal which has not yet solidified cannot flow outof the mold, on the melting pot being moved away from the mold. Formoving the melting pot away from the casting mold, the shaft 26 which ismounted in the panels 2 and 3 loosely mounted at both sides of themelting pot l upon the shaft 4, and which shaft extends under themelting pot I, is turned by the lever 38 being moved from the positionshown in full lines to the position 38' shown in broken lines. The shaft4 is mounted with its ends in the fixed side frames l0 and II. Thepanels 2 and 3, after the swinging back of the melting pot and thecasting mold into the position of rest, are held by a. weight 2'! in thelatter position. Upon the shaft 26 are fixed at both sides of themelting pot, levers 28, which by the swinging of the lever 38 are movedinto the position 28'. These levers 28 as they are rocked move links 29with which they are pivotally connected, said links engaging with theirfree ends two rollers 30 fixed to the two sides of the melting pot I.These rollers slide during the movement of the links 29, in slots 3| ofthe panels 2 and 3; by this means the melting pot l is moved away fromthe casting mold 5, 6 to the position shown in broken lines. The meltingpot rests during this movement upon two further rollers 32 fixed to itssides, said rollers sliding during the lateral movement of the meltingpot in slots 33 of the panels 2, 3. The rollers 32 are connected with atwo-arm lever 34, S5 turning about shaft 36. During the displacement ofthe roller 32, the lever 34, 35 moves into the position 34, 35 shown inbroken lines; in this position the arm 35 acts as a lock relative to alocking member 3'! fixed upon shaft 4; it is then impossible to turn thelever l8 which is used for simultaneously swinging the melting pot andcasting mold, after the melting pot I has.

been moved away from the casting mold 5, 6.

I claim:

1. In a device for casting plane stereotype plates, in combination amelting pot, a mold adapted to receive the molten metal from saidmelting pot and comprising two superposed parts hinged togetherpermitting the top part to be tilted sideways relative to the bottompart, cooperating members for locking said parts together, means formoving said melting pot and said mold together about a common axis frominoperative to casting position, and vice versa, a

connecting duct intermediate said melting pot and said mold, heatingmeans for said duct, and means independent of said first means formoving said mold away from said melting pot to a substantiallyhorizontal position upon the return of said melting pot and said mold totheir inoperative position.

2. In a device for casting plane stereotype plates, in combination, amelting pot, a movable panel having said melting pot connected to it, amold adapted to receive the molten metal from said melting pot andcomprising two superposed parts hinged together permitting the top partto be tilted sideways relative to the bottom part, cooperating membersfor locking said parts together, means for moving said melting pot andsaid mold together about a common axis from inoperative to castingposition, and vice versa, a connecting duct intermediate said meltingpot and said mold, heating means for said duct, means independent ofsaid first means for moving said mold away from said melting pot to asubstantially horizontal position upon said melting pot and said moldbeing returned to their inoperative position, and a toggle-joint havingone of its members secured to the bottom part of said mold and its othermember to said panel so as to hold said mold in its relative positionaway from said melting pot.

3. In a device for casting plane stereotype plates, in combination amelting pot, a mold adapted to receive the molten metal from saidmelting pot and comprising two superposed parts hinged togetherpermitting the top part to be tilted away from the bottom part,cooperating members for locking said parts together, means for movingsaid melting pot and said mold together about a common axis frominoperative to casting position, a connecting duct disposed intermediatesaid melting pot and said mold and adapted to be heated, and means forclosely moving the casting mold and melting pot towards each other priorto their being moved together from inoperative to casting position atthe same time looking said mold, said means being designed to also movesaid mold and said melting pot away from each other upon said partsbeing returned to their inoperative position, said mold remaining in asubstantially horizontal position and being at the same time unlocked.

ERNST BROCKEL.

